How to use PHP to develop a practical mutual follow function?

How to use PHP to develop a practical mutual follow function?

With the rise of social media, people increasingly like to interact with friends on the Internet. In this process, the function of following each other becomes increasingly important. You may have seen this function on many social media platforms, such as Weibo, WeChat official accounts, etc. This article will introduce how to use PHP to develop a practical mutual follow function.

To realize the mutual follow function, you first need to have a user system. You can use PHP and MySQL to create a user database. In the user database, each user has his or her own unique identifier and other related information, such as username, password, etc. You can create a user table in the database to store user information.

In the user table, you can add a field to represent the user's attention. For example, you can create a field called "followers" to store the people the user follows. You can use a string to store this information, separated by commas for each follower. In addition, you can also create a field called "following" to store the people the user is following.

On your user interface, you can create a follow button. When the user clicks this button, you can use PHP code to implement the follow function. First, you need to get the unique identifier of the current user and the unique identifier of the followed user. Then, you can get the current user's following list and followed list from the database. Adds the followed user's unique identifier to the current user's following list, and adds the current user's unique identifier to the followed user's followed list. Finally, the updated watchlist is written to the database.

In addition to the follow function, you can also implement the unfollow function. When a user no longer follows someone, you can use PHP code to remove the unfollowed user's unique identifier from the current user's following list and remove the current user's unique identifier from the unfollowed user's followed list. Unique identifier.

It is also important to display follow relationships on the user interface. You can display the current user's following list and followed list on the user's profile page. You can use PHP code to get this information from the database and display it on the interface.

In addition, you can also implement some other functions to improve user experience. For example, you can display mutually followed friends on the user's profile page, or implement a recommendation function for mutual following. These functions can be achieved by using PHP code and related algorithms.

In short, it is not complicated to develop a practical mutual follow function using PHP. By properly designing the database and writing corresponding PHP code, you can implement follow functions, unfollow functions, and other related functions. These features improve user experience and make your website more interactive and interesting.

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